CA2419707A1 - Controlled lifeboat deployer - Google Patents
Controlled lifeboat deployer Download PDFInfo
- Publication number
- CA2419707A1 CA2419707A1 CA002419707A CA2419707A CA2419707A1 CA 2419707 A1 CA2419707 A1 CA 2419707A1 CA 002419707 A CA002419707 A CA 002419707A CA 2419707 A CA2419707 A CA 2419707A CA 2419707 A1 CA2419707 A1 CA 2419707A1
- Authority
- CA
- Canada
- Prior art keywords
- wave
- vessel
- deployment
- deployer
- launch position
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 8
- 230000000977 initiatory effect Effects 0.000 claims 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B23/00—Equipment for handling lifeboats or the like
- B63B23/40—Use of lowering or hoisting gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
- B63B27/36—Arrangement of ship-based loading or unloading equipment for floating cargo
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
- G01C13/002—Measuring the movement of open water
- G01C13/004—Measuring the movement of open water vertical movement
Abstract
A control system to control the descent of a seafaring vessel, such as a lifeboat, into water is disclosed herein. The control system, and an accompanying method, control the descent speed of the seafaring vessel to minimise the possibility of setback after splashdown, and thus increase the probability of a safe and orderly launch.
Claims (19)
1. A seafaring vessel deployment system for lowering a seafaring vessel into water for launching, the deployment system comprising:
a wave sensor for sensing wave characteristics of incoming waves;
a vessel deployer, for deploying the seafaring vessel into the water; and a deployment control system for receiving sensed wave characteristics from the wave sensor and for controlling vessel deployer to deploy the seafaring vessel into the water by determining a desired launch position for the seafaring vessel on an incoming wave and initiating the deployment to cause the seafaring vessel to splashdown at the desired launch position.
a wave sensor for sensing wave characteristics of incoming waves;
a vessel deployer, for deploying the seafaring vessel into the water; and a deployment control system for receiving sensed wave characteristics from the wave sensor and for controlling vessel deployer to deploy the seafaring vessel into the water by determining a desired launch position for the seafaring vessel on an incoming wave and initiating the deployment to cause the seafaring vessel to splashdown at the desired launch position.
2. The deployment system of claim 1, wherein the seafaring vessel is a life boat.
3. The deployment system of claim 1, wherein the wave sensor includes a radar based sensing system for obtaining real time three dimensional images of the water.
4. The deployment system of claim 3, wherein the wave sensor further includes a comparator, operatively connected to the sensing system, for comparing two obtained images of the water and deriving wave characteristics from the comparison.
5. The deployment system of claim 1, wherein the sensed characteristics include the phase of the incoming waves.
6. The deployment system of claim 1, wherein the sensed characteristics include the speed of the incoming waves.
7. The deployment system of claim 1, wherein the sensed characteristics include the height of the incoming waves.
8. The deployment system of claim 1, wherein the deployer includes a hoist having a controllable motor for lowering the seafaring vessel into the water at a controlled speed.
9. The deployment system of claim 1, wherein the deployment control system includes a launch position determination system for receiving the sensed characteristics, and determining a desired launch position on an incoming wave based on wave speed and wave height.
10. The deployment system of claim 9, wherein the desired launch position is the crest of a wave.
11. The deployment system of claim 9, wherein the desired launch position is between the crest of a wave and the ensuing trough.
12. The deployment system of claim 9, wherein the deployment control system includes communications means for providing the seafaring vessel a desired launch speed derived from the received characteristics.
13. A method of deploying a seafaring vessel using seafaring vehicle deployer, the method comprising:
obtaining characteristics of incoming waves;
determining, from the obtained characteristics, a desired launch position;
determining the time before the desired launch position is below the vessel;
and deploying the vessel to splashdown at the desired launch position.
obtaining characteristics of incoming waves;
determining, from the obtained characteristics, a desired launch position;
determining the time before the desired launch position is below the vessel;
and deploying the vessel to splashdown at the desired launch position.
14. The method of claim 13, wherein the characteristics include wave height, wave speed, and wave phase.
15. The method of claim 13, wherein the desired launch position is between the crest of first a wave and the trough between the first and a second wave.
16. The method of claim 13, wherein the step of deploying includes releasing the seafaring vessel to slide down a ramp into the water.
17. A deployment controller for receiving wave characteristics from a wave sensor and for controlling a deployer to deploy a sea faring vessel at a desired launch position, the controller comprising:
a sensor input for receiving the wave characteristics;
a deployer interface, for receiving from the deployer vessel height information;
a launch position determination system, for determining from the received wave characteristics the desired launch position; and a deployer controller for determining the time at which the deployment of the vessel should commence based on the vessel height information and the received wave characteristics.
a sensor input for receiving the wave characteristics;
a deployer interface, for receiving from the deployer vessel height information;
a launch position determination system, for determining from the received wave characteristics the desired launch position; and a deployer controller for determining the time at which the deployment of the vessel should commence based on the vessel height information and the received wave characteristics.
18. The controller of claim 17, wherein the received wave characteristics include wave height and speed.
19. The controller of claim 18, wherein the deployer controller includes a launch delay calculator for calculating a launch delay based on the wave speed and vessel height, and wherein the deployer interface initiates deployment upon expiry of the calculated launch delay.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US35834702P | 2002-02-22 | 2002-02-22 | |
| US60/358,347 | 2002-02-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2419707A1 true CA2419707A1 (en) | 2003-08-21 |
| CA2419707C CA2419707C (en) | 2010-02-09 |
Family
ID=27804996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2419707A Expired - Fee Related CA2419707C (en) | 2002-02-22 | 2003-02-21 | Controlled lifeboat deployer |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US6904864B2 (en) |
| CA (1) | CA2419707C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111666529A (en) * | 2020-06-12 | 2020-09-15 | 重庆交通大学 | Wave data processing and wave spectrum generating method |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0804658D0 (en) * | 2008-03-13 | 2008-04-16 | Pisys Ltd | Lifeboat simulator |
| US9115687B2 (en) * | 2012-02-25 | 2015-08-25 | Atargis Energy Corporation | Efficient wave energy conversion using cycloidal turbines |
| GB201303031D0 (en) * | 2013-02-21 | 2013-04-03 | Limpet Holdings Uk Ltd | Improved appratus for and method of transferring an object between a marine transport vessel and a construction or vessel |
| US9079640B1 (en) | 2014-01-31 | 2015-07-14 | Alexander/Ryan Marine & Safety Co. | System and process for directing actions of a helmsman of a lifeboat |
| US9902470B1 (en) | 2016-09-01 | 2018-02-27 | Jacek Jankowski | Lifeboat launching arrangement |
| DK180805B1 (en) * | 2020-07-20 | 2022-04-05 | Enabl As | Method and a system for handling components during transferring of the components from a vessel to a fixed structure |
| JP2022091049A (en) * | 2020-12-08 | 2022-06-20 | ヤマハ発動機株式会社 | Boat |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3109185A (en) * | 1962-04-18 | 1963-11-05 | Marvin O Miller | Apparatus and method for launching and recovering lifeboats in rough seas |
| US4000646A (en) * | 1972-05-01 | 1977-01-04 | Texaco Inc. | Wave height measuring device |
| JPS6025875A (en) | 1983-07-22 | 1985-02-08 | Hitachi Zosen Corp | Control of boat fall for lifeboat |
| US4928925A (en) * | 1984-09-20 | 1990-05-29 | Christison S Grant | Constant tension hoisting member |
| GB2215468B (en) * | 1988-03-02 | 1992-10-14 | Technical Survey Services Ltd | Apparatus and method for measuring the vertical displacement of a floating platform and a method of determining the pitch and roll thereof |
| NL9002066A (en) | 1990-09-20 | 1992-04-16 | Schat Davit Bv | OPERATING DEVICE FOR THE LAUNCH OF A LIFE BOAT. |
| US5706755A (en) * | 1995-09-07 | 1998-01-13 | Seascape Systems Limited | Access and evacuation system for an offshore platform |
| JPH10325720A (en) | 1997-05-22 | 1998-12-08 | Kaijo Corp | Measuring apparatus for wave height and shore-approaching speed |
| US5970906A (en) * | 1997-10-13 | 1999-10-26 | Pullmaster Winch Corporation | Motion compensation winch |
| JPH11295066A (en) | 1998-04-07 | 1999-10-29 | Nec Corp | Judging system for optimum landing point on water for flying boat, and for flight descending path |
| JP4308997B2 (en) | 1999-11-05 | 2009-08-05 | 日本無線株式会社 | Tide detector |
-
2003
- 2003-02-21 US US10/369,536 patent/US6904864B2/en not_active Expired - Fee Related
- 2003-02-21 CA CA2419707A patent/CA2419707C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111666529A (en) * | 2020-06-12 | 2020-09-15 | 重庆交通大学 | Wave data processing and wave spectrum generating method |
| CN111666529B (en) * | 2020-06-12 | 2023-07-28 | 重庆交通大学 | Wave data processing and wave spectrum generating method |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2419707C (en) | 2010-02-09 |
| US6904864B2 (en) | 2005-06-14 |
| US20030221605A1 (en) | 2003-12-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20180221 |